Question

3. A 15 m long ladder reached a window 12 m high
from the ground on placing it against a wall at a
distance a. Find the distance of the foot of the
ladder from the wall.​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

15²=12m²+x².... Pythagoras theorem

225=144+x²

x²=225-144

x²=91

taking square root on both sides

x=9 m

Step-by-step explanation:

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